view mde/events.d @ 161:e3fe6acc16fb

Replaced WidgetManager's click and motion callbacks with a drag event system. This is less flexible, but much closer to what is required (and is simpler and less open to bugs through unintended use). The widget under the mouse is now passed (although could just as easily have been before).
author Diggory Hardy <diggory.hardy@gmail.com>
date Thu, 21 May 2009 22:15:40 +0200
parents a86f8445ccc8
children
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/* LICENSE BLOCK
Part of mde: a Modular D game-oriented Engine
Copyright © 2007-2008 Diggory Hardy

This program is free software: you can redistribute it and/or modify it under the terms
of the GNU General Public License as published by the Free Software Foundation, either
version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>. */

/** Handling for all events from SDL_PollEvent.
 *
 * Handles some events, including a quit-request and window resizing, and passes the rest on to the
 * input system. */
module mde.events;

import imde = mde.imde;
import mde.setup.Screen;
import mde.input.Input;

import derelict.sdl.events;
import tango.time.Time;
import tango.util.log.Log : Log, Logger;

private Logger logger;
private Input input;
static this() {
    logger = Log.getLogger ("mde.events");
    input = Input.singleton;
}

void pollEvents (TimeSpan) {
    SDL_Event event;
    while (SDL_PollEvent (&event)) {
        switch (event.type) {
            case SDL_QUIT:
                debug logger.trace ("Quit (from SDL_QUIT event)");
                imde.run = false;
                break;
            case SDL_VIDEORESIZE:
                Screen.resizeEvent (event.resize.w, event.resize.h);
                imde.mainSchedule.request(imde.SCHEDULE.DRAW);
                break;
            case SDL_VIDEOEXPOSE:	// screen's been modified, we need to redraw
                imde.mainSchedule.request(imde.SCHEDULE.DRAW);
	    case SDL_ACTIVEEVENT:	// mouse focus gained/lost, etc.
		break;
            default:
                try {
                    if (!input.send (event))
                        logger.info ("Unrecognised event with code {}", event.type);
                } catch (Exception e) {
                    logger.error ("Caught input exception; event will be ignored. Exception was:");
                    logger.error (e.msg);
                }
        }
    }
}